Inviter script for linkedin.com

linkedInInviter.js

(function () {
    function FriendInviteBot() {
        const netUrl = "https://www.linkedin.com/mynetwork/";
        var silent = false;

        var buttonsList;
        var alreadyCollectedUsers = [];

        function timeOutDecorator(method, intervalSrc) {
            return function () {
                var interval = intervalSrc;
                if (typeof interval === 'function') interval = intervalSrc();
                method();

                var timeout = setTimeout(tick, interval);

                function tick() {

                    method();
                    if (typeof intervalSrc === 'function') interval = intervalSrc(interval);

                    timeout = setTimeout(tick, interval);
                }
            };
        }

        function recalcButtons() {
            buttonsList = document.querySelectorAll('.mn-person-card__card-actions>button[data-control-name="invite"]');
            buttonsList.inviteCounter = 0;
            var len = buttonsList.length;

            if (!silent) console.log("Have recalculated buttons, now have " + len);
            return len;
        }

        function scrollPage() {
            window.scrollBy(0, 500); //just 500px down

            if (!silent) console.log("Have scrolled bit down");
        }

        function scrollPageInterval(interval) {
            var minInterval = 500; // 500ms, check it
            var minUsersToAddOnPage = 30; //just for check
            if (typeof interval === 'undefined') interval = minInterval;

            if (recalcButtons() > minUsersToAddOnPage) {
                interval *= 2;

                if (!silent) console.log("Increase interval of scroll X2, now interval = " + interval);
            } else {
                interval /= 2;
                if (interval < minInterval) interval = minInterval;

                if (!silent) console.log("Decrease interval of scroll /2, was trying, now interval = " + interval);
            }
            return Math.floor(interval);
        }

        function clickButtons() {
            var index = buttonsList.inviteCounter;
            if (index < buttonsList.length) {

                if(!isCollected(index)) {
                    buttonsList[index].click();

                    if (!silent) console.log(getNameFromButton(index) + " have added!");
                }
                buttonsList.inviteCounter++;
            }
        }

        function isCollected(index) {
            var bt = buttonsList[index];
            var id = bt.attributes[3].nodeValue;
            if (alreadyCollectedUsers.indexOf(id) === -1) {
                alreadyCollectedUsers.push(id);
                return false;
            }
            return true;
        }

        function getNameFromButton(index) {
            var bt = buttonsList[index];
            return bt.parentNode.parentNode.querySelector('.mn-person-info__name').innerText.trim();
        }

        this.run = function (onSilent) {
            if (window.location.href != netUrl) {
                console.log("Wrong url, go to " + netUrl);
                return;
            }

            if (typeof onSilent !== 'undefined' && true === onSilent) silent = true;

            var scrolling = timeOutDecorator(scrollPage, scrollPageInterval);
            scrolling();

            var inviting = timeOutDecorator(clickButtons, 2000); //click per 2 seconds
            inviting();
        };
    }

    var badGuy = new FriendInviteBot();
    badGuy.run();
})();